HR: 0800h
AN: G51C-0845    [Abstracts]
TI: Towards a Continental Scale Deformation Map of the Western Basin and Range from InSAR
AU: * Gourmelen, N
EM: ngourmelen@rsmas.miami.edu
AF: University of Miami, 4600 Rickenbaker Causeway, Miami, FL 33149 United States
AU: Amelung, F
EM: amelung@rsmas.miami.edu
AF: University of Miami, 4600 Rickenbaker Causeway, Miami, FL 33149 United States
AB: InSAR has been long limited to a single 100*100 kilometers area deformation map. Some recent studies have expanded the measurements to multiple frames as well as adjacent tracks. Following those efforts, we use a complete set of 2000 ERS data acquired between 1992 and 2002 in an attempt to recover the deformation field for the entire western Basin and Range. The studied areas encompass known deforming areas of the western Basin and Range: the Central Nevada Seismic Belt, Walker Lane and Eastern California Shear Zone. We use the stacking method to reduce the atmospheric and orbital artifact as well as small baseline interferometry (SBAS) to recover the time history of the deformation. The overlaps between adjacent tracks double the dataset for a given area and therefore increase the potential of both stacking and SBAS methods. The results show a very good coherence over the Basin and Range and deformation measurement accuracy within few millimeters a years.
DE: 1209 Tectonic deformation (6924)
DE: 1211 Non-tectonic deformation
DE: 1240 Satellite geodesy: results (6929, 7215, 7230, 7240)
DE: 1895 Instruments and techniques: monitoring
SC: Geodesy [G]
MN: Fall Meeting 2005